What does 390t mean?

[CaydenMarie]

390t refers to a 2.0-liter displacement, specifically a 2.0t, where 't' stands for turbocharged engine. A turbocharger is essentially an air compressor. Here are the detailed explanations: 1. Principle of the air compressor: It increases the engine's air intake by compressing air, thereby enhancing the engine's power and torque, making the vehicle more powerful. There are four types: mechanical supercharging, pressure wave supercharging, exhaust gas turbocharging, and compound supercharging. 2. Function of the automobile engine: It is the power-generating device of a car, serving as the heart of the vehicle, determining its power, fuel efficiency, stability, and environmental friendliness. Depending on the power source, automobile engines can be categorized into diesel engines, gasoline engines, electric vehicle motors, and hybrid systems, among others. Common gasoline and diesel engines belong to reciprocating piston-type internal combustion engines, which convert the chemical energy of fuel into the mechanical energy of piston motion and output power externally.